.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 0.44rem;
  background-color: #46b8da;
  h1 {
    text-align: center;
    line-height: 0.44rem;
    font-size: 0.18rem;
    color: #ffffff;
  }
  .icon {
    position: absolute;
    top: 0.08rem;
    right: 0.15rem;
    color: #ffffff;
    font-size: 0.3rem;
  }
}